Selection
Protein synthesis and degradation gene SNPs related to feed intake, feed efficiency, growth, and ultrasound carcass traits in Nellore cattle
Authors: R.C. Gomes, S.L. Silva, M.E. Carvalho, F.M. Rezende, L.F.B. Pinto, M.H.A. Santana, T.R. Stella, F.V. Meirelles, P. Rossi J�ºnior, P.R. Leme and J.B.S. Ferraz
We looked for possible associations of SNPs in genes related to protein turnover, with growth, feed efficiency and carcass traits in feedlot Nellore cattle. Purebred Nellore bulls and steers (N = 290; 378 ± 42 kg body weight, 23 months ± 42 days old) were evaluated for daily feed intake, body weight gain (BWG), gross feed efficiency, feed co.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.August.12.8
- DOI:
- 10.4238/2013.August.12.8
Genetic potential of common bean progenies obtained by different breeding methods evaluated in various environments
Authors: V.A. Pontes J�ºnior, P.G.S. Melo, H.S. Pereira and L.C. Melo
Grain yield is strongly influenced by the environment, has polygenic and complex inheritance, and is a key trait in the selection and recommendation of cultivars. Breeding programs should efficiently explore the genetic variability resulting from crosses by selecting the most appropriate method for breeding in segregating popu.. Read More»
- Genet. Mol. Res. 15(3):
- gmr.15038622
- DOI:
- 10.4238/gmr.15038622
Selection index based on the relative importance of traits and possibilities in breeding popcorn
Authors: R.A. Vieira, R. Rocha, C.A. Scapim, A.T. Amaral J�ºnior and M. Vivas
One of the major difficulties faced by popcorn breeders is the negative correlation between popping expansion (PE) and grain yield (GY). It is necessary to overcome this difficulty to obtain promising genotypes. One helpful tool in this process is a selection index because it allows multiple features of interest to be selected.. Read More»
- Genet. Mol. Res. 15(2):
- gmr.15027719
- DOI:
- 10.4238/gmr.15027719
Improvement of a popcorn population using selection indexes from a fourth cycle of recurrent selection program carried out in two different environments
Authors: A.T. Amaral J�ºnior, S.P. Freitas J�ºnior, R.M. Rangel, G.F. Pena, R.M. Ribeiro, R.C. Morais and A.R. Schuelter
We estimated genetic gains for popcorn varieties using selection indexes in a fourth cycle of intrapopulation recurrent selection developed in the campus of the Universidade Estadual do Norte Fluminense. Two hundred full-sib families were obtained from the popcorn population UNB-2U of the third recurrent selection cycle. The p.. Read More»
- Genet. Mol. Res. 9(1):
- vol9-1gmr702
- DOI:
- 10.4238/vol9-1gmr702
Molecular evolution of the melanocortin 1-receptor pigmentation gene in rodents
Authors: G.L. Gon�§alves, V.R. Paix�£o-C�´rtes and T.R.O. Freitas
Adaptive variation in the melanocortin 1-receptor gene (MC1R), a key locus in melanogenesis, has been identified in some species of rodents. However, in others, MC1R has no causative role in pigmentation phenotypes despite their coat color variation. In this study, we characterized the rates and patterns of MC1R nucleotide and amino acid sequence evolutio.. Read More»
- Genet. Mol. Res. 12(3):
- 2013.February.28.24
- DOI:
- 10.4238/2013.February.28.24
Positive evolution of the glycoprotein (GP) gene is related to transmission of the Ebola virus
Authors: Y.X. Jing, L.N. Wang, X.M. Wu and C.X. Song
Ebola hemorrhagic fever is a fatal disease caused by the negative-strand RNA of the Ebola virus. A high-intensity outbreak of this fever was reported in West Africa last year; however, there is currently no definitive treatment strategy available for this disease. In this study, we analyzed the molecular evolutionary history a.. Read More»
- Genet. Mol. Res. 15(1):
- gmr.15017173
- DOI:
- 10.4238/gmr.15017173
Prediction of core cancer genes using a hybrid of feature selection and machine learning methods
Authors: Y.X. Liu, N.N. Zhang, Y. He and L.J. Lun
Machine learning techniques are of great importance in the analysis of microarray expression data, and provide a systematic and promising way to predict core cancer genes. In this study, a hybrid strategy was introduced based on machine learning techniques to select a small set of informative genes, which will lead to improving classification accuracy. Fi.. Read More»
- Genet. Mol. Res. 14(3):
- 2015.August.3.10
- DOI:
- 10.4238/2015.August.3.10
Synonymous codon selection in the hepatitis B virus translation initiation region
Authors: M.-R. Ma, L. Hui, M.-L. Wang, Y. Tang, Y.-W. Chang, Q.-H. Jia, X.-P. Yang, X.-H. Wang and X.-Q. Ha
Hepatitis B virus (HBV) infection is a major health problem worldwide. This virus and its hosts are often fated to continual co-evolutionary interactions. Codon usage analysis has significance for studies of co-evolution between viruses, their hosts, and mRNA translation. Adaptation of the overall codon usage pattern of HBV to that of humans is estimated .. Read More»
- Genet. Mol. Res. 14(3):
- 2015.August.7.4
- DOI:
- 10.4238/2015.August.7.4
Adaptability of soybean cultivars in different crop years
Authors: I.O. Soares, P.M. Rezende, A.T. Bruzi, E.V. Zambiazzi, A.M. Zuffo, K.B. Silva and R. Gwinner
Soybean is one of the main sources of foreign exchange credits for Brazil in the agricultural sector. There is increasing interest in growing this leguminous crop, especially in the southern region of Minas Gerais, due to its importance as an alternative for crop rotation with maize. In this respect, the study of the adaptability of new cultivars to the r.. Read More»
- Genet. Mol. Res. 14(3):
- 2015.August.7.8
- DOI:
- 10.4238/2015.August.7.8
Estimate of genetic gain in popcorn after cycles of phenotypic recurrent selection
Authors: H.J. Ematn�©, J.A.R. Nunes, K.O.G. Dias, P.E.R. Prado and J.C. Souza
Popcorn is widely consumed in Brazil, yet there are few breeding programs for this crop. Recurrent selection (RS) is a viable breeding alternative for popcorn; however, the gains achieved must be frequently checked. The aim of this study was to assess the effect of selection for grain type (round and pointed) after four cycles.. Read More»
- Genet. Mol. Res. 15(2):
- gmr.15026860
- DOI:
- 10.4238/gmr.15026860